C asked in Science & MathematicsPhysics · 4 weeks ago

Physics Equation?

 A runner is going at 7.3 ft/s when he decides to accelerate at 0.30 ft/s2. How long 

will it take him to travel 0.250 mile? Please answer in seconds.

(use the quadratic equation to solve for time)

1 Answer

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  • 4 weeks ago

    He'll cover D = UxT + 1/2 AT^2; so that .15T^2 + 7.3T - .250*5280 = 0 is the quad, which has the solution T = 72.58 seconds.  ANS.

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